/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ /* * This file is part of the LibreOffice project. * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. * * This file incorporates work covered by the following license notice: * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at http://www.apache.org/licenses/LICENSE-2.0 . */ #ifndef INCLUDED_FPICKER_SOURCE_WIN32_FILEPICKER_HELPPOPUPWINDOW_HXX #define INCLUDED_FPICKER_SOURCE_WIN32_FILEPICKER_HELPPOPUPWINDOW_HXX #include #include #include #define WIN32_LEAN_AND_MEAN #if defined _MSC_VER #pragma warning(push, 1) #endif #include #if defined _MSC_VER #pragma warning(pop) #endif // declaration /* A simple popup window similary to the one the windows help (using WinHelp) creates when called with the option HELP_CONTEXTPOPUP. The interface is very simple but necessary for our needs. The window automatically calculates the necessary dimensions of the window and a appropriate show position based on the position the client provides. When the user click any mouse button or hits any key the window closes itself and disappears. */ class CHelpPopupWindow { public: /* The client may set some parameter of the window. When the client omits to set one or more values a default value will be taken. The values are in pixel. */ CHelpPopupWindow( HINSTANCE hInstance, HWND hwndParent ); /* dtor */ ~CHelpPopupWindow( ); /* The client may set the text the window is showing on next activation. */ void SAL_CALL setText( const OUString& aHelpText ); /* Shows the window with the text that was last set. The position is the preferred position. The window may itself show at a slightly different position if it fits not at the preferred position. */ void SAL_CALL show( sal_Int32 x, sal_Int32 y ); HWND SAL_CALL setParent( HWND hwndNewParent ); private: void SAL_CALL onPaint( HWND, HDC ); void SAL_CALL onNcDestroy(); void SAL_CALL onCreate( HWND ); POINT SAL_CALL calcUpperLeftCorner( ); void SAL_CALL calcWindowRect( LPRECT lprect ); void SAL_CALL adjustWindowSize( sal_Int32*, sal_Int32* ); void SAL_CALL adjustWindowPos( sal_Int32 x, sal_Int32 y, sal_Int32 cx, sal_Int32 cy ); ATOM SAL_CALL RegisterWindowClass( ); void SAL_CALL UnregisterWindowClass( ); static LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam ); private: sal_Int32 m_hMargins; sal_Int32 m_vMargins; sal_Int32 m_avCharWidth; sal_Int32 m_avCharHeight; HWND m_hwnd; HWND m_hwndParent; HINSTANCE m_hInstance; sal_Bool m_bWndClassRegistered; OUString m_HelpText; HBITMAP m_hBitmapShadow; HBRUSH m_hBrushShadow; // the window class has to be registered only // once per process, so multiple instance of this class // share the registered window class static ATOM s_ClassAtom; static osl::Mutex s_Mutex; static sal_Int32 s_RegisterWndClassCount; // prevent copy and assignment private: CHelpPopupWindow( const CHelpPopupWindow& ); CHelpPopupWindow& operator=( const CHelpPopupWindow& ); }; #endif /* vim:set shiftwidth=4 softtabstop=4 expandtab: */